Quantum Phase Transitions in the p-SiGe system
Mesoscale and Nanoscale Physics
2007-05-23 v1 Strongly Correlated Electrons
Abstract
The rich variety of phase transitions observed in the strained p-SiGe system are considered and compared. It is shown that the integer quantum Hall effect transitions, the Hall insulating transition and the re-entrant transition into an insulating phase near filling factor 3/2 are all very similar and good examples of quantum critical phase transitions. The B=0 metal insulator transition also shows many similarities to these transitions but requires the inclusion of an extra impurity scattering term to fully explain the data.
Cite
@article{arxiv.cond-mat/9909292,
title = {Quantum Phase Transitions in the p-SiGe system},
author = {P. T. Coleridge and P. Zawadzki and A. Sachrajda and Y. Feng and R. L. Williams},
journal= {arXiv preprint arXiv:cond-mat/9909292},
year = {2007}
}
Comments
5 pages. 4 figures (needs moriand.sty, included). To appear in Proceedings of the XXXIV Rencontres de Moriand, January 1999